Across
- 2. the name for someone who study's fossils
- 3. appearance of flowering plants
- 6. the name for multiple periods of time
- 9. the name for buildup of sediment
- 11. large flaming ball in space
- 12. the item that gets fossilized
- 14. period in which amphibians first appeared
- 15. the finished product of Petrification
- 16. the adjustment to living conditions
Down
- 1. the discharge of magma becoming lava
- 4. another word for the same type of animal
- 5. a period in which marine life first appeared (vertebrates) (fish)
- 7. term used for 100% of a species going extinct
- 8. what happens when you look at medusa
- 10. appearance of first dinosaurs
- 13. multiplication of reptile species